Question

x : 9/16 = 16/45
3⅑:х=7\9

Answer 1

$x \div \frac{9}{16} = \frac{16}{45} \\ x = \frac{16}{45} \times \frac{9}{16} \\ x = \frac{1}{5}$

$3 \frac{1}{9} \div x = \frac{7}{9} \\ x = 3 \frac{1}{9} \div \frac{7}{9} \\ x = 4$